La India María must find at all costs in the recesses of a mountain the Magic Black Mirror of Tezcatlipoca, since the spirit of his great-grandfather Moctezuma II ordered her to find it in to prevent the destruction of Mexico. Alonso, a handsome Spanish archaeologist, Bianchi, an antiquities dealer and Brigida Troncoso - an ambitious governor, are aware of the existence of such mirror, of the mysterious treasure of Moctezuma and of María, so all undertake a frantic chase after her to seize the magic glass and the gold.
A young teenager named Mikey Walsh finds an old treasure map in his father's attic. Hoping to save their homes from demolition, Mikey and his friends Data Wang, Chunk Cohen, and Mouth Devereaux run off on a big quest to find the secret stash of Pirate One-Eyed Willie.